What is the main focus of this video in the series?

Solving Trigonometric Equations and Identities

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Hard

Olivia Brooks
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Introduction to basic trigonometric functions
Solving trigonometric equations with identities, non-factorable equations, and squaring both sides
Solving trigonometric equations using graphs
Graphing trigonometric functions
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which identity is used to substitute for sine squared x in the first problem?
Sine squared x + cosine squared x = 1
Sine x = cosine x
Tangent squared x + 1 = secant squared x
Cosine squared x - sine squared x = 1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the reference angle used when solving for cosine x = ±√3/2?
60 degrees
45 degrees
90 degrees
30 degrees
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which identity is used to solve the equation by squaring both sides?
Sine squared x + cosine squared x = 1
Tangent squared theta + 1 = secant squared theta
Cosine squared x - sine squared x = 1
Sine x = cosine x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the tangent function value for the angles found in the second problem?
-√3
√3
-1/√3
1/√3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to check solutions when squaring both sides of an equation?
To confirm the equation is factorable
To check for symmetry
To ensure no extraneous solutions are included
To verify the graph is correct
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct solution for the tangent equation after checking for extraneous solutions?
150 degrees
90 degrees
330 degrees
210 degrees
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